FR2441102A1 - PNEUMATIC SPRING - Google Patents
PNEUMATIC SPRINGInfo
- Publication number
- FR2441102A1 FR2441102A1 FR7927395A FR7927395A FR2441102A1 FR 2441102 A1 FR2441102 A1 FR 2441102A1 FR 7927395 A FR7927395 A FR 7927395A FR 7927395 A FR7927395 A FR 7927395A FR 2441102 A1 FR2441102 A1 FR 2441102A1
- Authority
- FR
- France
- Prior art keywords
- piston
- piston rod
- rod
- retracted position
- locking means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/56—Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
CE RESSORT CONSTITUE PAR UN ENSEMBLE PISTON-TIGE COULISSANT DANS UN CYLINDRE REMPLI D'UN GAZ COMPRIME ET EVENTUELLEMENT D'UN LIQUIDE, EST MUNI DE DEUX PASSAGES A TRAVERS LE PISTON, DONT LE PREMIER EST OUVERT LORSQUE LA TIGE DE PISTON N'EST PAS PRES DE SA POSITION RETRACTEE ET DONT LE SECOND EST FERME PENDANT LA COURSE DE SORTIE DE LA TIGE DE PISTON, DES MOYENS DE BLOCAGE ETANT PORTES EN PARTIE PAR LE CYLINDRE ET EN PARTIE PAR L'ENSEMBLE PISTON-TIGE POUR FERMER LE PREMIER PASSAGE LORSQUE LA TIGE DE PISTON EST PRES DE SA POSITION RETRACTEE. IL EST CARACTERISE EN CE QUE LE MOYEN DE BLOCAGE PORTE PAR L'ENSEMBLE PISTON-TIGE EST UN ELEMENT 32 MUNI DE L'ORIFICE 66 DU PREMIER PASSAGE TOURNE A L'OPPOSE DE L'EXTREMITE DU CYLINDRE PAR LAQUELLE SORT LA TIGE DE PISTON, TANDIS QUE L'AUTRE MOYEN DE BLOCAGE EST UN ELEMENT D'OBTURATION 60 SOLLICITE AXIALEMENT PAR UN RESSORT 62 ET QUI FERME L'ORIFICE LORSQUE LA TIGE DE PISTON SE RAPPROCHE DE SA POSITION ENTIEREMENT RETRACTEE.THIS SPRING CONSTITUTES A PISTON-ROD ASSEMBLY SLIDING IN A CYLINDER FILLED WITH COMPRESSED GAS AND POSSIBLY WITH A LIQUID, IS EQUIPPED WITH TWO PASSAGES THROUGH THE PISTON, THE FIRST OF WHICH IS OPEN WHEN THE PISTON ROD IS NOT NEAR ITS RETRACTED POSITION AND THE SECOND OF WHICH IS CLOSED DURING THE EXIT STROKE OF THE PISTON ROD, LOCKING MEANS BEING PARTLY BY THE CYLINDER AND PARTLY BY THE PISTON-ROD ASSEMBLY TO CLOSE THE FIRST PASSAGE WHEN THE PISTON ROD IS NEAR ITS RETRACTED POSITION. IT IS CHARACTERIZED IN THAT THE LOCKING MEANS CARRIED BY THE PISTON-ROD ASSEMBLY IS AN ELEMENT 32 EQUIPPED WITH THE ORIFICE 66 OF THE FIRST PASS TURNED AGAINST THE END OF THE CYLINDER FROM WHICH THE PISTON ROD EXTENDS, WHEREAS THE OTHER LOCKING MEANS IS A BLOCKING ELEMENT 60 SOLICITED AXIALLY BY A SPRING 62 AND WHICH CLOSES THE ORIFICE WHEN THE PISTON ROD APPROACHES ITS ENTIRELY RETRACTED POSITION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782847728 DE2847728A1 (en) | 1978-11-03 | 1978-11-03 | GAS SPRING WITH EXTENDED EXTENSION FORCE WITH RETRACTED PISTON ROD |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2441102A1 true FR2441102A1 (en) | 1980-06-06 |
FR2441102B1 FR2441102B1 (en) | 1986-05-09 |
Family
ID=6053789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7927395A Expired FR2441102B1 (en) | 1978-11-03 | 1979-10-31 | PNEUMATIC SPRING |
Country Status (5)
Country | Link |
---|---|
US (1) | US4307874A (en) |
JP (1) | JPS5565742A (en) |
BR (1) | BR7907138A (en) |
DE (1) | DE2847728A1 (en) |
FR (1) | FR2441102B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2552191A1 (en) * | 1983-09-16 | 1985-03-22 | Fichtel & Sachs Ind Inc | SEALING DEVICE FOR A FLUID SPRING |
FR2552514A1 (en) * | 1983-09-27 | 1985-03-29 | Lucas France | DAMPER OF THE FLUIDIC TYPE |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3151070C2 (en) * | 1981-12-23 | 1994-07-14 | Stabilus Gmbh | Safety gas spring for bonnets and / or trunk lids of motor vehicles |
DE3437098C2 (en) * | 1984-10-10 | 1995-01-26 | Stabilus Gmbh | Infinitely adjustable hydropneumatic device |
CH670039A5 (en) * | 1986-05-15 | 1989-05-12 | Giroflex Entwicklungs Ag | |
DE3707158A1 (en) * | 1987-03-06 | 1988-09-15 | Stabilus Gmbh | LOCKING DEVICE |
US5050943A (en) * | 1990-04-24 | 1991-09-24 | Forma Scientific, Inc. | Biological safety cabinet with window counterbalance |
DE4236961A1 (en) * | 1992-11-02 | 1994-05-05 | Fichtel & Sachs Ag | Fire protection for a vibration damper |
US5462141A (en) * | 1993-05-07 | 1995-10-31 | Tayco Developments, Inc. | Seismic isolator and method for strengthening structures against damage from seismic forces |
IT1271059B (en) * | 1993-11-19 | 1997-05-26 | Stabilus Gmbh | STOP DEVICE TO FIX TWO MOVABLE OBJECTS ONE RELATIVE TO THE OTHER |
US6062352A (en) * | 1998-08-24 | 2000-05-16 | Piolax, Inc. | Air damper |
US7070028B2 (en) | 2001-02-07 | 2006-07-04 | Tenneco Automotive Operating Company Inc. | Frequency dependent damper |
KR100424888B1 (en) * | 2001-11-19 | 2004-03-27 | 현대자동차주식회사 | Gas lifter of tail gate for car |
DE10236137B4 (en) * | 2002-08-07 | 2010-05-06 | Suspa Holding Gmbh | spring strut |
KR100494722B1 (en) * | 2002-10-15 | 2005-06-13 | 현대자동차주식회사 | Opening height auto-control apparatus of automobile tail gate |
JP2006194283A (en) * | 2005-01-11 | 2006-07-27 | Nissan Motor Co Ltd | Axial force generating device |
DE102005056005A1 (en) * | 2005-11-24 | 2007-06-06 | Stabilus Gmbh | adjustment |
KR101035016B1 (en) * | 2009-05-12 | 2011-05-17 | 주식회사 한국가스스프링 | A gas-spring with a speed controller |
DE102015121140A1 (en) * | 2015-12-04 | 2017-06-08 | Thyssenkrupp Ag | Vibration damper with hydraulic damping of the pressure stage stop |
DE102016123460A1 (en) * | 2016-12-05 | 2018-06-07 | Stabilus Gmbh | Piston-cylinder unit |
DE102016014779A1 (en) * | 2016-12-10 | 2018-06-14 | Hydac Technology Gmbh | Hydropneumatic piston-cylinder arrangement |
US11649873B1 (en) * | 2022-01-26 | 2023-05-16 | Thyssenkrupp Bilstein Of America, Inc. | User-adjustable multi-stage shock absorbers |
CN115788825B (en) * | 2022-12-09 | 2023-06-02 | 广东凯普生物科技股份有限公司 | Sustainable adsorption plunger pump and object moving and taking assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3885654A (en) * | 1974-04-05 | 1975-05-27 | Ford Motor Co | Deceleration device and valve mechanism |
US3991863A (en) * | 1973-06-22 | 1976-11-16 | Integrated Dynamics Incorporated | Metering shock absorber with manual adjustment |
GB1547193A (en) * | 1977-08-15 | 1979-06-06 | Girling Ltd | Telescopic suspension units for vehicles |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1015327B (en) * | 1955-01-27 | 1957-09-05 | Suspa Federungstechnik G M B H | Hydraulic telescopic vibration damper for vehicles |
DE2516478C3 (en) * | 1975-04-15 | 1978-12-07 | Suspa-Federungstechnik Fritz Bauer & Soehne Ohg, 8503 Altdorf | Gas spring |
FR2334018A1 (en) * | 1975-12-06 | 1977-07-01 | Volkswagenwerk Ag | SUPPORT DEVICE CONTAINING AT LEAST ONE FLUID UNDER PRESSURE AND INTENDED IN PARTICULAR FOR THE TAILGATE OF A VEHICLE |
DE2619176C2 (en) * | 1976-04-30 | 1982-10-21 | Stabilus Gmbh, 5400 Koblenz | Gas spring with no extension force when the piston rod is retracted |
DE2653552C2 (en) * | 1976-11-25 | 1982-06-09 | Fritz Bauer + Söhne oHG, 8503 Altdorf | Gas spring, which is designed as a lifting aid for opening and holding trunk lids or trunk lids of motor vehicles in the open position |
-
1978
- 1978-11-03 DE DE19782847728 patent/DE2847728A1/en active Granted
-
1979
- 1979-10-29 US US06/089,137 patent/US4307874A/en not_active Expired - Lifetime
- 1979-10-31 FR FR7927395A patent/FR2441102B1/en not_active Expired
- 1979-11-01 BR BR7907138A patent/BR7907138A/en unknown
- 1979-11-02 JP JP14144979A patent/JPS5565742A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3991863A (en) * | 1973-06-22 | 1976-11-16 | Integrated Dynamics Incorporated | Metering shock absorber with manual adjustment |
US3885654A (en) * | 1974-04-05 | 1975-05-27 | Ford Motor Co | Deceleration device and valve mechanism |
GB1547193A (en) * | 1977-08-15 | 1979-06-06 | Girling Ltd | Telescopic suspension units for vehicles |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2552191A1 (en) * | 1983-09-16 | 1985-03-22 | Fichtel & Sachs Ind Inc | SEALING DEVICE FOR A FLUID SPRING |
FR2552514A1 (en) * | 1983-09-27 | 1985-03-29 | Lucas France | DAMPER OF THE FLUIDIC TYPE |
Also Published As
Publication number | Publication date |
---|---|
US4307874A (en) | 1981-12-29 |
DE2847728A1 (en) | 1980-05-14 |
BR7907138A (en) | 1980-07-08 |
JPS6134009B2 (en) | 1986-08-05 |
FR2441102B1 (en) | 1986-05-09 |
DE2847728C2 (en) | 1989-06-15 |
JPS5565742A (en) | 1980-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |